r19754 added a dependency on port:libtiff; that should have been port:tiff.
--- trunk/dports/gnome/yelp/Portfile 2006-12-01 03:21:20 UTC (rev 20822)
+++ trunk/dports/gnome/yelp/Portfile 2006-12-01 05:44:34 UTC (rev 20823)
@@ -18,7 +18,7 @@
port:libbonobo \
port:libgnome \
port:libgnomeui \
- port:libtiff
+ port:tiff
use_bzip2 yes
configure.env CPPFLAGS="-L${prefix}/lib -I${prefix}/include" \